TY - JOUR
T1 - The evaluation of fusel oil fraction for lipase catalyzed alcoholysis of hazelnut oil
AU - Tuter, M.
AU - Akdere, C.
AU - Yerlikaya, Cemile
AU - Sirkecioǧlu, A.
PY - 2011/1
Y1 - 2011/1
N2 - The alcoholysis of the hazelnut oil with a fusel oil fraction obtained from molasses fusel oil (b.p. 120-132°C) was investigated in the presence of lipase B from Candida antarctica (Novozym 435) in an organic solvent. Silica gel 60 was chosen as a glycerol collector. The optimum reaction conditions of the alcoholysis conducted in n-hexane were found to be as follows: 0.8 silica gel/oil weight ratio; 10% enzyme amount based on oil weight; oil: alcohol molar ratio of 1:3; temperature 70°C. In order to compare the effect of the alcohol type, alcoholysis of hazelnut oil was conducted with straight and branched chain primer alcohols, such as methanol, propanol, butanol, i-butanol, octanol, amyl alcohol, and i-amyl alcohol, at optimum conditions. High conversions were obtained with branch and long chained alcohols. I-octane was found to be one of the best solvents besides n-hexane for enzymatic alcoholysis of hazelnut oil with fusel oil fraction resulting with the highest conversion.
AB - The alcoholysis of the hazelnut oil with a fusel oil fraction obtained from molasses fusel oil (b.p. 120-132°C) was investigated in the presence of lipase B from Candida antarctica (Novozym 435) in an organic solvent. Silica gel 60 was chosen as a glycerol collector. The optimum reaction conditions of the alcoholysis conducted in n-hexane were found to be as follows: 0.8 silica gel/oil weight ratio; 10% enzyme amount based on oil weight; oil: alcohol molar ratio of 1:3; temperature 70°C. In order to compare the effect of the alcohol type, alcoholysis of hazelnut oil was conducted with straight and branched chain primer alcohols, such as methanol, propanol, butanol, i-butanol, octanol, amyl alcohol, and i-amyl alcohol, at optimum conditions. High conversions were obtained with branch and long chained alcohols. I-octane was found to be one of the best solvents besides n-hexane for enzymatic alcoholysis of hazelnut oil with fusel oil fraction resulting with the highest conversion.
KW - Candida antarctica
KW - alcoholysis
KW - fusel oil fraction
KW - hazelnut oil
KW - lipase
UR - http://www.scopus.com/inward/record.url?scp=78650563274&partnerID=8YFLogxK
U2 - 10.1080/15567030903096972
DO - 10.1080/15567030903096972
M3 - Article
AN - SCOPUS:78650563274
SN - 1556-7036
VL - 33
SP - 521
EP - 528
JO - Energy Sources, Part A: Recovery, Utilization and Environmental Effects
JF - Energy Sources, Part A: Recovery, Utilization and Environmental Effects
IS - 6
ER -